Ion charge state distributions in high current vacuum arc plasmas in a magnetic field

Author

Oks, Efim M. ; Anders, André ; Brown, Ian G. ; Dickinson, Michael R. ; MacGill, Robert A.

Author_Institution

Inst. of High-Current Electron., Acad. of Sci., Tomsk, Russia

Volume

24

Issue

3

fYear

1996

fDate

6/1/1996 12:00:00 AM

Firstpage

1174

Lastpage

1183

Abstract

We have investigated the charge state distributions of metal ions produced in a high current vacuum arc plasma located in a strong magnetic field. The arc current was varied over the range 200 A to 4 kA and the magnetic field was from zero up to 10 kG. In general, the effect of both high arc current and high magnetic field is to push the distribution to higher charge states-the mean ion charge state is increased and new high charge states are formed. These effects are explained in terms of increased power input (higher plasma temperature) and delayed freezing of the charge state distribution during the plasma expansion process

Keywords

magnetic fields; metals; plasma diagnostics; vacuum arcs; 10 kG; 200 A to 4 kA; arc current; charge state distribution; freezing; high current vacuum arc plasmas; magnetic field; mean ion charge state; metal ion charge state distributions; plasma expansion; plasma temperature; Acceleration; Ion sources; Magnetic field measurement; Magnetic fields; Plasma accelerators; Plasma density; Plasma immersion ion implantation; Plasma sources; Plasma temperature; Vacuum arcs;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.533127

Filename

533127